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/* CompletionField.m
*
* Copyright (C) 2003-2024 Free Software Foundation, Inc.
*
* Authors: Enrico Sersale
* Riccardo Mottola
* Date: August 2001
*
* This file is part of the GNUstep GWorkspace application
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.
*/
#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
#import <GNUstepBase/GNUstep.h>
#import "GWFunctions.h"
#import "FSNFunctions.h"
#import "CompletionField.h"
@implementation CompletionField
- (void)dealloc
{
[super dealloc];
}
- (id)initWithCoder: (NSCoder *) coder
{
self = [super initWithCoder: coder];
if (self)
{
[self setRichText: NO];
[self setImportsGraphics: NO];
[self setUsesFontPanel: NO];
[self setUsesRuler: NO];
[self setEditable: YES];
fm = [NSFileManager defaultManager];
}
return self;
}
- (void)setFrame:(NSRect)frameRect
{
NSSize size;
[super setFrame: frameRect];
size = NSMakeSize(1e7, [self bounds].size.height);
[[self textContainer] setContainerSize: size];
[[self textContainer] setWidthTracksTextView: YES];
}
- (void)keyDown:(NSEvent *)theEvent
{
NSString *eventstr = [theEvent characters];
NSString *str = [self string];
#define CHECK_SEPARATOR \
if ([path hasSuffix: pathSeparator] == NO) \
[path appendString: pathSeparator]
if (([eventstr isEqual: @"\r"] == NO)
&& ([eventstr isEqual: @"\t"] == NO))
{
[super keyDown: theEvent];
}
if ([eventstr isEqual: @"\t"] && [str length])
{
CREATE_AUTORELEASE_POOL(arp);
NSString *pathSeparator = path_separator();
NSArray *components = [str componentsSeparatedByString: pathSeparator];
NSMutableString *path = [NSMutableString string];
NSUInteger i, j, m, n;
if ([[components objectAtIndex: 0] isEqual: str])
{
NSArray *appPaths;
NSMutableArray *appBundles;
NSUInteger i;
NSString *completedAppName = nil;
appPaths = NSStandardApplicationPaths();
appBundles = [[NSMutableArray alloc] initWithCapacity:1];
for (i = 0; i < [appPaths count]; i++)
{
NSArray *contents;
contents = [fm directoryContentsAtPath: [appPaths objectAtIndex:i]];
[appBundles addObjectsFromArray:contents];
}
for (i = 0; i < [appBundles count]; i++)
{
NSString *appToCheck = [appBundles objectAtIndex:i];
// for simplicity, we complete with the first app found
if ([appToCheck hasPrefix: str] || [appToCheck isEqualToString:str])
{
completedAppName = appToCheck;
}
}
[self setString: completedAppName];
[appBundles release];
RELEASE (arp);
return;
}
[path appendString: pathSeparator];
for (i = 0; i < [components count]; i++)
{
NSString *component = [components objectAtIndex: i];
NSString *teststr = [path stringByAppendingString: component];
BOOL isDir;
if (([fm fileExistsAtPath: teststr isDirectory: &isDir] && isDir)
&& ([path isEqual: teststr] == NO))
{
NSArray *contents = [fm directoryContentsAtPath: teststr];
if (contents && ([str hasSuffix: pathSeparator] == NO))
{
BOOL found = NO;
for (j = 0; j < [contents count]; j++)
{
NSString *fname = [contents objectAtIndex: j];
if ([fname hasPrefix: component] && (![fname isEqual: component]))
{
found = YES;
}
}
if (found)
{
CHECK_SEPARATOR;
[path appendString: component];
NSBeep();
}
else
{
CHECK_SEPARATOR;
[path appendString: component];
if (isDir)
{
[path appendString: pathSeparator];
}
}
}
else
{
CHECK_SEPARATOR;
[path appendString: component];
if (isDir)
{
[path appendString: pathSeparator];
}
}
}
else
{
NSArray *contents = [fm directoryContentsAtPath: path];
if (contents)
{
NSMutableArray *common = [NSMutableArray array];
NSUInteger *lengths = NSZoneMalloc (NSDefaultMallocZone(), sizeof(NSUInteger) * [contents count]);
NSUInteger prefLength = 0;
NSUInteger index = 0;
for (j = 0; j < [contents count]; j++)
{
lengths[j] = 0;
}
for (j = 0; j < [contents count]; j++)
{
NSString *fname = [contents objectAtIndex: j];
if ([fname hasPrefix: component])
{
NSRange range = [fname rangeOfString: component];
if (range.length >= prefLength)
{
prefLength = range.length;
lengths[j] = range.length;
index = j;
}
[common addObject: fname];
}
}
if (prefLength != 0)
{
BOOL found = NO;
for (m = 0; m < [contents count]; m++)
{
NSUInteger l1 = lengths[m];
for (n = 0; n < [contents count]; n++)
{
NSUInteger l2 = lengths[n];
if ((m != n) && ((l1 != 0) && (l2 != 0)))
{
if ((l1 == l2) && (l1 == prefLength))
{
found = YES;
break;
}
}
}
if (found)
{
break;
}
}
if (found == NO)
{
NSString *cprefix = commonPrefixInArray(common);
if (cprefix)
{
CHECK_SEPARATOR;
[path appendString: cprefix];
if ([fm fileExistsAtPath: path isDirectory: &isDir])
{
if (isDir)
{
[path appendString: pathSeparator];
}
}
else
{
NSBeep();
}
}
else
{
CHECK_SEPARATOR;
[path appendString: [contents objectAtIndex: index]];
[path appendString: pathSeparator];
}
}
else
{
NSString *cprefix = commonPrefixInArray(common);
if (cprefix)
{
CHECK_SEPARATOR;
[path appendString: cprefix];
}
else
{
NSString *s = [[contents objectAtIndex: index] substringToIndex: prefLength];
[path appendString: s];
}
NSZoneFree (NSDefaultMallocZone(), lengths);
NSBeep();
break;
}
}
NSZoneFree (NSDefaultMallocZone(), lengths);
}
}
}
[self setString: path];
RELEASE (arp);
} else if ([eventstr isEqual: @"\r"] && [str length]) {
[controller completionFieldDidEndLine: self];
}
}
@end
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